The Kani Karan Asia Laboratory Vertical Centrifugal Sand Pump is particularly valuable in the continuous test or pilot plant. The design of the pump is such that the pump bowl acts as the sump and the feed falls directly into the runner by gravity, requiring no intake head. This arrangement permits small volumes of heavy and comparatively coarse particles as well as frothy slurries to be pumped Without excessive dilution. The wearing parts are of extra heavy material and quickly replaceable, while wear on the follower plate and runner can be compensated by an adjustment screw. The upper and lower bearings are enclosed in a sealed bearing unit above and away from the solution and splash.